Top Tech Jobs & Startup Jobs in Denver & Boulder, CO

Plans and runs acquisition, customer growth, and retention campaigns end to end. Defines audiences, sequencing, channels, timelines, and campaign goals; tracks response, pipeline, retention, and expansion impact; adjusts campaigns based on performance data; briefs content and creative teams; and collaborates with global performance marketing to align regional activity and inform investment decisions.

Develop and enhance embedded firmware for memory controllers and SSDs. Responsibilities include debugging firmware and hardware issues, conducting bench testing and root cause analysis, improving product performance, collaborating with cross-functional engineering teams, and maintaining technical documentation. The role requires expertise in C-based embedded firmware, RTOS, memory management, compilers, and low-level system architectures, with preferred experience in SSDs, PCIe, NVMe, NAND flash, DDR, and AI-assisted development tools.

Leads and develops a software engineering team responsible for real-time, event-based bonus systems. Oversees people, delivery, governance, quality, architecture, risk mitigation, and process improvement. Drives SDLC transformation through AI and agentic workflows, removes delivery blockers, mentors developers, and remains hands-on with technical solutions. The role requires expertise in scalable, highly available, low-latency systems, server-side and frontend development, databases, messaging, and middleware.

Lead a small team developing and supporting a business-critical verification platform. Design and deliver scalable, maintainable, performant systems during a ground-up re-architecture using Golang, React, cloud platforms, Kafka, SQL, .NET, and TypeScript. Provide technical leadership, solution governance, estimation, hands-on development, escalation support, code-quality oversight, and coaching while collaborating with UK teams and ensuring reliable delivery.

Provide customer support for an online gambling platform through live chat, telephone, and email. Investigate and resolve inquiries, complaints, and account issues using internal tools; escalate matters as needed; communicate policies and licensing requirements accurately; and promote responsible gambling. The full-time role includes an eight-week training program and evening, weekend, and holiday rotations.

Owns complex, cross-functional projects from initiation through closeout. Manages scope, schedules, budgets, resources, risks, dependencies, compliance requirements, change control, governance, and project documentation. Coordinates stakeholders across construction, installation, engineering, supply chain, finance, and legal teams while monitoring KPIs and reporting project health. Requires regular travel to industrial and construction sites with variable environmental conditions and safety requirements.

Provide fast, empathetic technical support for Attio's SaaS CRM via email, chat, and video; troubleshoot APIs, integrations and product issues; document bugs; contribute to knowledge bases; advocate customer needs to Product and Engineering; and help customers optimize workflows and automations to drive long-term value.

Audit interns support client engagements by performing audit, review, and compliance testing; preparing financial statements, footnotes, reports, and engagement outputs; gathering client information; analyzing data; identifying process improvements; and communicating with engagement leaders. Interns develop practical audit, accounting, GAAP, software, administrative, communication, and teamwork skills while working with clients across various industries.

Leads end-to-end quality assurance for Workday implementations, upgrades, and enhancements. Defines testing strategies, plans, frameworks, and risk mitigation; oversees functional, integration, regression, and UAT testing across Workday modules. Manages defects, test data, environments, release validation, reporting, and stakeholder sign-off. Coordinates QA activities among business teams, developers, system integrators, vendors, and delivery partners while ensuring adherence to quality standards and governance.

Manage tax compliance engagements, communicate with clients, review tax work, provide training, and maintain technical expertise in tax areas.

Build and maintain production frontend applications for mission-critical communications software. Develop reusable UI components, integrate frontend systems with APIs and backend services, implement testing and CI/CD pipelines, resolve defects and performance issues, and support technical documentation. Translate requirements into development tasks, contribute to agile planning, provide technical leadership and mentorship, and collaborate with engineering, UI/UX, and customer stakeholders.

Leads the design and development of software solutions addressing complex business needs. Provides technical guidance, facilitates problem resolution, reviews coding and testing, prepares technical documentation, and applies modern development methodologies and tools. The role also supports application architecture, integration, testing, release management, and business initiatives while managing technology-related risks.

Supports the stability, availability, performance, and compliance of production systems. Responsibilities include monitoring, maintenance, patching, upgrades, incident resolution, root cause analysis, capacity reporting, application governance, continuity testing, audit responses, and technology-standard compliance. The role requires Hogan mainframe experience, participates in rotating on-call support, and transfers system knowledge to junior staff.

Leads software quality engineering activities, including test strategy and plan development, test execution oversight, risk and defect management, resource and environment gap identification, and test reporting. Guides junior team members, collaborates with cross-functional stakeholders and governance teams, and contributes to continuous quality improvement. The role requires a bachelor’s degree and at least three years of relevant experience.

Own product and feature launches, positioning, messaging, go-to-market plans, sales enablement, and technical content. Develop collateral, case studies, thought leadership, vertical-specific messaging, and customer proof points for technical and executive audiences. Collaborate with product, engineering, sales, and design teams while tracking launch adoption, share of voice, and pipeline impact.

Leads software systems engineering for SATCOM mission planning supporting military NC3 networks. Responsibilities include requirements, architecture, API and backend development, user interface implementation, integration, testing, deployment, code reviews, security, performance improvements, mentoring, and Agile DevSecOps delivery. The role requires onsite work in Colorado Springs, active U.S. Secret clearance, U.S. Person status, and up to 10% travel.

Develops and maintains software requirements, architectures, algorithms, APIs, backend services, and user interfaces for SATCOM mission-planning systems. Supports Agile and DevSecOps development across design, integration, testing, and deployment, including CI/CD automation, vulnerability scanning, code reviews, and performance optimization. The role works with space and ground systems, geospatial visualization, databases, Kubernetes, and modern front-end technologies. It requires active Secret clearance, U.S. citizenship, full-time onsite work in Colorado Springs, and up to 10% travel.

Develop and maintain requirements, architecture, APIs, interfaces, and algorithms for SATCOM mission planning software. Support full software lifecycle in Agile/DevSecOps environments, build backend services, implement CI/CD pipelines, perform code reviews, and translate designs into modern front-end interfaces emphasizing automation, testing, security, and performance.